CN108611468A - 一种钢丝的热处理方法 - Google Patents

一种钢丝的热处理方法 Download PDF

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CN108611468A
CN108611468A CN201810694886.2A CN201810694886A CN108611468A CN 108611468 A CN108611468 A CN 108611468A CN 201810694886 A CN201810694886 A CN 201810694886A CN 108611468 A CN108611468 A CN 108611468A
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迟沅财
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Liuzhou Heng Yang Machinery Co Ltd
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    • C21D1/34—Methods of heating
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    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/56—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering characterised by the quenching agents
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    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
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Abstract

本发明提供一种钢丝的热处理方法，包括如下步骤：a）高温加热处理：对钢丝进行平炉加热，加热温度为930‑980℃，加热时间为3‑4min；之后进行铅淬，铅淬时间为2‑4min；b）退火：送入1000℃‑1100℃的退火炉中；c）酸洗及冲洗处理：酸洗时间为2‑3min，水冲洗时间为5‑6min；d）锌系磷化处理：锌系磷化液的总酸度为80‑115点，游离酸度为12‑20点，酸比为5‑8；e）冲洗及皂化处理：水冲洗时间为5‑6min，皂化温度为70‑80℃；f）干燥处理：烘干温度为220‑235℃，烘干时间为0.8‑1.2min。该方法克服现有技术缺陷，具有生产效率高、钢丝质量好的特点。

Description

一种钢丝的热处理方法
技术领域
本发明涉及钢丝加工领域，具体涉及一种钢丝的热处理方法。
背景技术
钢丝是一种用热轧盘条经冷拉制成的再加工金属产品，在众多行业有着广泛的应用。在钢丝生产过程中，热处理是一个重要环节。由于钢丝一般都要用来施加拉力，所以要求有较强的抗拉强度和较好力学性能，而对钢丝进行热处理就是为了达到这个目的；同时，钢丝制造过程中在组织间会产生一定的内应力或组织应力，对钢丝的使用起到反作用，热处理可以消除这个内应力。
目前，钢丝的热处理使用较多的方式为中间热处理，然而由于中间热处理工序环节安排的不合理，存在生产效率低、生产成本高、钢丝成本质量不高的问题。尤其是热处理过程中的表面磷化处理，由于磷化工艺选用不当，如总酸度、游离酸度、酸比、磷化温度、磷化时间等安排不合理，导致钢丝表面防腐性能与润滑性不高，不能很好满足钢丝绳热处理拉丝生产的要求。
发明内容
本发明旨在提供一种钢丝的热处理方法，该方法克服现有技术缺陷，具有生产效率高、钢丝质量好的特点。
本发明的技术方案如下：
1.一种钢丝的热处理方法，包括如下步骤：
a）高温加热处理：对钢丝进行平炉加热，加热温度为930-980℃，加热时间为3-4min；之后进行铅淬，铅淬时间为2-4min；
b）退火：将铅淬后的钢丝送入1000℃-1100℃的退火炉中，走线速度为5-8m/min；
c）酸洗及冲洗处理：选用醋酸进行酸洗，酸洗时间为2-3min，水冲洗时间为5-6min；
d）锌系磷化处理：锌系磷化液的总酸度为80-115点，游离酸度为12-20点，酸比为5-8，温度为80-90℃，磷化时间为40-50s；
e）冲洗及皂化处理：水冲洗时间为5-6min，皂化温度为70-80℃；
f）干燥处理：采用烘干箱进行烘干，烘干温度为220-235℃，烘干时间为0.8-1.2min。
优选地，所述平炉加热过程采用分段加热的方式，平炉加热炉共分为四段，第一段炉加热温度为975-985℃，第二段炉加热温度为960-970℃，第三段炉加热温度为940-950℃，第四段炉加热温度为925-935℃，在第四段炉保温1-2min后进入铅锅进行铅淬火过程；所述铅淬火过程中，铅锅的两段温度均为560-580℃。
本发明方案采用分段加热的方式进行加热，通过合理控制各段的炉温，能够减轻环境变化对组织结构的影响，保障产品的质量和稳定性；同时，有效提高钢丝的抗拉强度，提高钢丝绳的疲劳寿命；并且该热处理加工方法实施简便、生产成本低，采用了先进的连续式快速锌系磷化工艺，不仅提高了生产效率，而且提高了钢丝绳成品质量，满足了钢丝绳热处理拉丝生产的要求。
具体实施方式
下面结合实施例具体说明本发明。
实施例1
一种钢丝的热处理方法，包括如下步骤：
a）高温加热处理：对钢丝进行平炉加热，加热温度为930℃，加热时间为3min；之后进行铅淬，铅淬时间为2min；
b）退火：将铅淬后的钢丝送入1000℃的退火炉中，走线速度为5m/min；
c）酸洗及冲洗处理：选用醋酸进行酸洗，酸洗时间为2min，水冲洗时间为5min；
d）锌系磷化处理：锌系磷化液的总酸度为80点，游离酸度为12点，酸比为5，温度为80℃，磷化时间为40s；
e）冲洗及皂化处理：水冲洗时间为5min，皂化温度为70℃；
f）干燥处理：采用烘干箱进行烘干，烘干温度为220℃，烘干时间为0.8min；
所述平炉加热过程采用分段加热的方式，平炉加热炉共分为四段，第一段炉加热温度为975℃，第二段炉加热温度为960℃，第三段炉加热温度为940℃，第四段炉加热温度为925℃，在第四段炉保温1min后进入铅锅进行铅淬火过程；所述铅淬火过程中，铅锅的两段温度均为560℃。
实施例2
一种钢丝的热处理方法，包括如下步骤：
a）高温加热处理：对钢丝进行平炉加热，加热温度为980℃，加热时间为4min；之后进行铅淬，铅淬时间为4min；
b）退火：将铅淬后的钢丝送入1100℃的退火炉中，走线速度为8m/min；
c）酸洗及冲洗处理：选用醋酸进行酸洗，酸洗时间为3min，水冲洗时间为6min；
d）锌系磷化处理：锌系磷化液的总酸度为115点，游离酸度为20点，酸比为8，温度为90℃，磷化时间为50s；
e）冲洗及皂化处理：水冲洗时间为6min，皂化温度为80℃；
f）干燥处理：采用烘干箱进行烘干，烘干温度为235℃，烘干时间为1.2min；
所述平炉加热过程采用分段加热的方式，平炉加热炉共分为四段，第一段炉加热温度为985℃，第二段炉加热温度为970℃，第三段炉加热温度为950℃，第四段炉加热温度为935℃，在第四段炉保温1-2min后进入铅锅进行铅淬火过程；所述铅淬火过程中，铅锅的两段温度均为580℃。
实施例3
一种钢丝的热处理方法，包括如下步骤：
a）高温加热处理：对钢丝进行平炉加热，加热温度为960℃，加热时间为3min；之后进行铅淬，铅淬时间为3min；
b）退火：将铅淬后的钢丝送入1050℃的退火炉中，走线速度为6m/min；
c）酸洗及冲洗处理：选用醋酸进行酸洗，酸洗时间为2min，水冲洗时间为5min；
d）锌系磷化处理：锌系磷化液的总酸度为100点，游离酸度为16点，酸比为6，温度为80℃，磷化时间为45s；
e）冲洗及皂化处理：水冲洗时间为5min，皂化温度为75℃；
f）干燥处理：采用烘干箱进行烘干，烘干温度为220℃，烘干时间为1min；
所述平炉加热过程采用分段加热的方式，平炉加热炉共分为四段，第一段炉加热温度为980℃，第二段炉加热温度为965℃，第三段炉加热温度为945℃，第四段炉加热温度为930℃，在第四段炉保温2min后进入铅锅进行铅淬火过程；所述铅淬火过程中，铅锅的两段温度均为570℃。

Claims (2)

1.一种钢丝的热处理方法，其特征在于包括如下步骤：
a）高温加热处理：对钢丝进行平炉加热，加热温度为930-980℃，加热时间为3-4min；之后进行铅淬，铅淬时间为2-4min；
b）退火：将铅淬后的钢丝送入1000℃-1100℃的退火炉中，走线速度为5-8m/min；
c）酸洗及冲洗处理：选用醋酸进行酸洗，酸洗时间为2-3min，水冲洗时间为5-6min；
d）锌系磷化处理：锌系磷化液的总酸度为80-115点，游离酸度为12-20点，酸比为5-8，温度为80-90℃，磷化时间为40-50s；
e）冲洗及皂化处理：水冲洗时间为5-6min，皂化温度为70-80℃；
f）干燥处理：采用烘干箱进行烘干，烘干温度为220-235℃，烘干时间为0.8-1.2min。
2.根据权利要求1所述的钢丝的热处理加工方法，其特征在于：
所述平炉加热过程采用分段加热的方式，平炉加热炉共分为四段，第一段炉加热温度为975-985℃，第二段炉加热温度为960-970℃，第三段炉加热温度为940-950℃，第四段炉加热温度为925-935℃，在第四段炉保温1-2min后进入铅锅进行铅淬火过程；所述铅淬火过程中，铅锅的两段温度均为560-580℃。
CN201810694886.2A 2018-06-29 2018-06-29 一种钢丝的热处理方法 Pending CN108611468A (zh)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109504838A (zh) * 2018-12-25 2019-03-22 宁波淡水谷金属制线有限公司 一种钢丝热处理工艺
CN110724795A (zh) * 2019-09-30 2020-01-24 江苏冠晟超导科技有限公司 导线用钢丝的等温淬火热处理工艺

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101985754A (zh) * 2010-09-21 2011-03-16 江苏赛福天钢绳有限公司 一种钢丝的连续式热处理工艺
CN103255279A (zh) * 2013-05-20 2013-08-21 天津高盛钢丝绳有限公司 一种钢丝的热处理工艺
CN103590026A (zh) * 2013-10-15 2014-02-19 昆山宏凌电子有限公司 一种钢丝的热处理加工方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101985754A (zh) * 2010-09-21 2011-03-16 江苏赛福天钢绳有限公司 一种钢丝的连续式热处理工艺
CN103255279A (zh) * 2013-05-20 2013-08-21 天津高盛钢丝绳有限公司 一种钢丝的热处理工艺
CN103590026A (zh) * 2013-10-15 2014-02-19 昆山宏凌电子有限公司 一种钢丝的热处理加工方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109504838A (zh) * 2018-12-25 2019-03-22 宁波淡水谷金属制线有限公司 一种钢丝热处理工艺
CN110724795A (zh) * 2019-09-30 2020-01-24 江苏冠晟超导科技有限公司 导线用钢丝的等温淬火热处理工艺

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Application publication date: 20181002